Or when rsilvers suggested TO ME that I contact the manufacturer? Which I did! The response was for 'AAC and Noveske' that would be fine but it depends on the gas port size used by the manufacturer. Would it be when rsilvers was asked by another member if running an H buffer and carbine spring with his 16' AAC 300 Blackout set up ( parts from another company ) be correct. The guy who pretty much designed the cartridge and platform gives you the answer already, along with several members who run the system, and you post a comment like this.